Adaptive filters enable prediction, noise cancellation, and echo removal
Evidence
An adaptive filter can be formulated to predict future values of the input signal by minimizing the prediction error. This is close to the idea of linear prediction, as described above. … Adaptive filtering can also be used to cancel noise in a signal, thus enhancing signal quality. An important subproblem is echo cancellation (Sondhi et al., 1995), where an echo in a system, acoustic or electronic, is attenuated. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 442
Categorization
Category: Causal Relationships
- XREF: Echo cancellation in telephony and acoustic systems directly ties to applications of communication acoustics, the reader’s stated purpose.
Related
- Adaptive filters cancel hearing aid whistling caused by earphone-microphone feedback (similarity 0.82)
- Active noise cancellation works by adding phase-reversed copies of background noise (similarity 0.80)
- Adaptive filtering changes filter coefficients over time in response to signals. (similarity 0.78)
Broader Connections
- Linear prediction models signals as optimal IIR-filter outputs
#expands(0.80) — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 430